import * as http from 'http';
import * as fs from 'fs';
import * as url from 'url';

let pathname;
// 创建服务器
http.createServer(function (request: http.IncomingMessage, response: http.ServerResponse) {
    // 解析请求，包括文件名
    pathname = url.parse(request.url || '').pathname;

    // 输出请求的文件名
    console.log("Request for " + pathname + " received.");

    // 从文件系统中读取请求的文件内容
    fs.readFile('./views/' + pathname.substr(1), function (err, data) {
        if (err) {
            console.log(err);
            // HTTP 状态码: 404 : NOT FOUND
            // Content Type: text/plain
            response.writeHead(404, { 'Content-Type': 'text/html' });
        } else {
            // HTTP 状态码: 200 : OK
            // Content Type: text/plain
            response.writeHead(200, { 'Content-Type': 'text/html' });

            // 响应文件内容
            response.write(data.toString());
        }
        //  发送响应数据
        response.end();
    });
}).listen(8081);

// 控制台会输出以下信息
console.log('Server running at http://127.0.0.1:8081/');